4 inches long
An item composed of one or more materials, molded, compressed, and/or baked into a rigid covering of irregular shapes and sizes. it is designed to cover air ducts and/or air duct fittings used in air conditioning, heating, cooling, pressurizing and de-icing systems to restrict the dissipation of heat. it may completely or partially encase the item for which designed. it may be furnished with or without fillers, cement, and/or separate or attached accessories for installation, (excluding flexible air duct covering and rigid pipe and pipe fitting coverings used in construction and building materials). Excludes insulation blanket, thermal, aircraft; insulation pipe fitting covering, thermal; and insulation sleeving, thermal.
Classification: Other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof)
NSN 6110-00-144-6763
NSN 6130-01-236-7456
NSN 6110-00-764-2014
NSN 5935-01-591-5197
NSN 5895-00-179-5210
NSN 6135-00-145-8884
NSN 5965-00-161-0795
NSN 5996-00-383-6173
NSN 5925-01-258-2129
NSN 6130-00-179-9948
NSN 4140-01-350-3277
NSN 5925-00-006-3539